Passphrase for /root/.ssh/id_rsa required with provided deploy ssh private key

[artemosuskyi]

Here's my github action

deploy:
    runs-on: ubuntu-latest
    needs:
      - push_image
    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: create env file
        run: |
          echo "GIT_COMMIT_HASH=${{ github.sha }}" >> ./envfile

      - name: Docker Stack Deploy
        uses: cssnr/stack-deploy-action@v1
        with:
          name: osu-team-sheets
          file: docker-stack.yaml
          host: osusheets.team
          user: deploy
          ssh_key: ${{ secrets.DEPLOY_SSH_PRIVATE_KEY }}
          env_file: ./envfile

When it comes to executing this job, it fails after trying to enter a pass for /root/.ssh/id_rsa
My private ssh is listed in authorized_keys inside my VPS where this user is defined. The key however was generated not as rsa but as ed_25519

[MGM103]

I got this issue before, I solved it by including all of the private key including the beginning and end OPENSSH comments in the private key:

-----BEGIN OPENSSH PRIVATE KEY-----
-----END OPENSSH PRIVATE KEY-----

Hope that helps!